Astro set 6

Card Set Information

Author:
dwrght16
ID:
299209
Filename:
Astro set 6
Updated:
2015-03-25 21:53:54
Tags:
Astro set
Folders:
Astro
Description:
exam 2
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  1. Suppose you are in an elevator. As the elevator starts upward, its speed
    will increase. During this time when the elevator is moving upward with
    INCREASING speed, your weight will be __________.
    greater than your normal weight at rest
  2. Suppose you are in an elevator that is moving upward. As the elevator
    nears the floor at which you will get off, its speed slows down. During
    this time when the elevator is moving upward with DECREASING speed, your
    weight will be ___
    less than your normal weight at rest
  3. The acceleration of gravity on Earth is approximately 10 m/s2 (more
    precisely, 9.8 m/s2). If you drop a rock from a tall building, about how
    fast will it be falling after 3 seconds?
    30m/s
  4. The difference between speed and velocity is that ________.
    velocity also includes a direction
  5. If you want to make a rocket turn left, you need to:
    Fire an engine that shoots out gas to the right.
  6. A net force acting on an object will always cause a change in the object's ________.
    momentum

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